I would not give veg if poops are soft and abnormal. Keep off veg and continue to feed hay until things stabilise
It’s often a sign of a gut disturbance. The bacteria in the gut are out of sync. The antibiotics can cause it and it can take some time before things reestablish. The probiotics can help (poop soup would be better but given both your piggies are having issues, that isn’t an option available to you).
all I can really suggest in addition to the advice already given is to speak to your vet if things aren’t improving
Poppy has been on baytril for the last 2 weeks and it was just over 2 days ago. Her appetite is recovering slowly but I'm still hand feeding a lil bit and givinv probiotics. Some of her poops look like this tho, should i be worried? View attachment 155350

Yes I'm having high hopes!They appear to have improved but still have that tail at the end. But no veggies until they’re back to normal.

Update: we are back on normal looking poops. However it's alarming me that poppy has lost around 50g last time i weighed her (October 15) she was 607 grams then went down to 568 grams on October 17th and then another loss on that day the evening she was at about 553 g. I'm worried now but she has a good appetite she always eats hay and drinks a lot of fluids as well. She eats her pellets so much too! She popcorns and has zoomies for the past 2 days alsoView attachment 155863
Update: we are back on normal looking poops. However it's alarming me that poppy has lost around 50g last time i weighed her (October 15) she was 607 grams then went down to 568 grams on October 17th and then another loss on that day the evening she was at about 553 g. I'm worried now but she has a good appetite she always eats hay and drinks a lot of fluids as well. She eats her pellets so much too! She popcorns and has zoomies for the past 2 days alsoView attachment 155863
Can i mix in a banana with her critical care?Don’t give her carrots, it’s not the best way to get her weight up. You will have to step in with syringe feeding now. Start every 3 hours and adjust depending on her weight tomorrow. She’s not eating enough hay to maintain/put on so you’ll have to help her. Sorry.
Try giving her more if she will take it. You will have to now feed her every two hours round the clock. The aim is to get her to take 60ml in a 24 hour period. I’d also perhaps have her seen by the vet again.
we cant take her to the vet until next week as it's my midterm week in uni and ive got no one to take her 
What is wheatgrass? Is it a grass based hay?
Plain porridge oats are great for building up piggies weight that have been poorly
Oh ok i was contemplating whether to give the whole rolled ones or the finer ones like instant oat texture?you don’t need to blend them, just give them the oats as they are, not much though
Oh ok i was contemplating whether to give the whole rolled ones or the finer ones like instant oat texture?
They've been eating their timothy hay nowKind of wet and mushy soft poos (it stinks when i smell them)